package idv.loveloser.dao;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.Transaction;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * MdlCourseSections entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see idv.loveloser.dao.MdlCourseSections
 * @author MyEclipse Persistence Tools
 */

public class MdlCourseSectionsDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(MdlCourseSectionsDAO.class);
	// property constants
	public static final String COURSE = "course";
	public static final String SECTION = "section";
	public static final String NAME = "name";
	public static final String SUMMARY = "summary";
	public static final String SUMMARYFORMAT = "summaryformat";
	public static final String SEQUENCE = "sequence";
	public static final String VISIBLE = "visible";

	public void save(MdlCourseSections transientInstance) {
		log.debug("saving MdlCourseSections instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(MdlCourseSections persistentInstance) {
		log.debug("deleting MdlCourseSections instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public MdlCourseSections findById(java.lang.Long id) {
		log.debug("getting MdlCourseSections instance with id: " + id);
		try {
			MdlCourseSections instance = (MdlCourseSections) getSession().get(
					"idv.loveloser.dao.MdlCourseSections", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(MdlCourseSections instance) {
		log.debug("finding MdlCourseSections instance by example");
		try {
			List results = getSession()
					.createCriteria("idv.loveloser.dao.MdlCourseSections")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding MdlCourseSections instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from MdlCourseSections as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByCourse(Object course) {
		return findByProperty(COURSE, course);
	}
	public List findByCourseSortBySection(Object course) {
		SQLQuery query=getSession().createSQLQuery("select * from mdl_course_sections where course="+course+" order by section asc");
		return query.addEntity(MdlCourseSections.class).list();
	}
	public List findBySection(Object section) {
		return findByProperty(SECTION, section);
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findBySummary(Object summary) {
		return findByProperty(SUMMARY, summary);
	}

	public List findBySummaryformat(Object summaryformat) {
		return findByProperty(SUMMARYFORMAT, summaryformat);
	}

	public List findBySequence(Object sequence) {
		return findByProperty(SEQUENCE, sequence);
	}

	public List findByVisible(Object visible) {
		return findByProperty(VISIBLE, visible);
	}

	public List findAll() {
		log.debug("finding all MdlCourseSections instances");
		try {
			String queryString = "from MdlCourseSections";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public MdlCourseSections merge(MdlCourseSections detachedInstance) {
		log.debug("merging MdlCourseSections instance");
		Transaction trx = getSession().beginTransaction();
		try {
			MdlCourseSections result = (MdlCourseSections) getSession().merge(
					detachedInstance);
			trx.commit();
			trx=null;
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(MdlCourseSections instance) {
		log.debug("attaching dirty MdlCourseSections instance");
		Transaction trx = getSession().beginTransaction();
		try {
			getSession().saveOrUpdate(instance);
			trx.commit();
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
		trx=null;
	}

	public void attachClean(MdlCourseSections instance) {
		log.debug("attaching clean MdlCourseSections instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}